The Toro Rosso STR9 was unveiled in the pit lane at Jerez on the first say of testing for the 2014 season. It marked a change to Renault power for the team, which had used Ferrari engines for the previous seven seasons.

However the French manufacturer’s new design for the overhauled 2014 engine regulations proved highly problematic. Toro Rosso’s running in the first test was so badly interrupted that new signing Daniil Kvyat was unable to do any laps in the car on the second day in Spain.